Thanks man, I just ended up buying them here. I got the license plate and trunk light too. Ed was a nice guy.I didn't do the overhead but I did just wired up blue LEDs in the footwells to match the ones I put the my trunk a while ago. Looks really good to me. Plus, didn't cost a dime since the LEDs were extras from my bike.
You can get the LED dome light from here...they also have the LEDs side mirror lights
2005-2013 Ford Mustang Dome & Map Light LED Upgrade (W/built in Resistor) Double the light
+1. Superbrightleds is the place to go for LED's. Great customer service and super fast shipping. Much cheaper than most other places.go to superbrightleds.com that's where I bought my lights from. Just select your car and they show you what will fit. I went ahead and did a full LED swap on my exteriors too while I was at it.